Air-brake-hose protector.



A. R. PEFFERS.

AIR BRAKE HOSE PROTECTOR. APPLICATION FILED JUNE 3,1912. RENEWED IUNE 1.1913.

1, 1 39,797. Patented May 18, 1915.

awvmtoz Qmi/liweoow R PM THE NORRIS PETERS C0,, PHOTO-LITHQ. WASHINUIUN.u C.

ANDREW R. PEFFERS, OFVAUROEA, ILLINOIS.

AIR-BRAKE-HOSE PROTECTOR.

Specification of Letters Patent.

Patented May 18, 1915.

Application filed June 3, 1912, Serial No. 701,334. Renewedil'une7,1913; Serial No. 772,422.

To all whom it may concern:

Be it known that 1, ANDREW 1t. Pnrrnns, a citizen of the United States,residing at Aurora, in the county of Kane and State of Illinois, haveinvented certain new and useful Improvements in Air-Brake-HoseProtectors; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same. c

This invention relates to pipe couplings, and more especially to thoseused on the air brake hose at the extremities of railway cars; and theobject of the same is to produce an improved protector for the hose atthis point, and especially at the nippleend of the coupling, which isheld upon the hose just back of and by the clamp holding the hose on thecoupling proper. This object is accomplished by constructing theprotector and clamp in the manner hereinafter more fully described andclaimed, and as shown in the drawings wherein Figure 1 is a sideelevation, Fig. 2 1s a central longitudinal sectional viewpartly inelevation, and Fig. 3 is a cross section on the line 3-3 of Fig. 2.

In the drawings T have conventionally shown the rubber hose H as heldupon the nipple N of a hose-pipe coupling by means of a clamp 0 made inthe form of a split ring having outturned ears E at its extremitiesprovided with perforations P through which passes a bolt B for drawingthem together and tightening the clamp around the,

hose and the hoseupon the nipple in the manner well understood.

Coming now more particularly to the present invention, the protector isa metal casting made in the shape of a shell whose body 1 is cylindricalon its inner face at its front end 2 where it surroundsthehose Hopposite the nipple N of the coupling and is tapered or flared on itsouter face, as at 3, so as to avoid an abrupt shoulder and there byinsure against anything more serious than mere glancing blows; and whatmight be called the rear end or skirt of the shell is enlargedinternally as at 4 so as to stand out of contact with the hose andpermitit to flex slightly as may be necessary, and also enlargedexternally as at 5 so as to preserve the same thickness of the wall ofthe shellthroughout. What might'be called thefront end of the shell isprovided at one side with a longitudinally projecting lug 6 pierced withan eye 7 disposed on a line at right angles to the axis of theprotector; and at the other side of this extremity the shell is providedwith a radial lip 8. I

1n attaching this device to the'hose a special form of clamp is used,although it will have the perforated ears for the bolt as describedabove. Said ears in this, instance are, however, provided with hooks 10whose a i g j shanks'project on lines parallel with the w axis of theclamp G and whose bills 11 project radially inward toward said axis; and

at a point directly opposite the split in the clamp O its body isprovided with a radially projecting pin 12. The clamp, as is well known,is'tightened up upon the hose end where it surrounds the nipple N of the0011 pling, by turning up the nut on the bolt 13, and no novelty for theclamp itself is claimed other than as it is constructed so as to coactand cooperate with the protector described above. 7 s

In the use of this device, the large end of the shell or body 1 isslipped over the hose first, with the pin 12 of the clamp C inthe eye 7,the nut on the bolt Bhaving been ad.- justed to permit suflicientexpansion of the ring C to enable it to follow the body and slide overthe end of the hose; and then the on the bolt B is tightened up to drawthe two ears E together and tighten the clamp.

Thereafter this end of the hose (which in air brake couplings is thefree end liable to swing around and hit against various objects or to bestruck by other objects) is thoroughly protected from injury, because,

just at apoint where the rubber or fabric would be cut on the corner ofthe nipple N if an external object struck it, the shell body I I 1 ofthe protector covers the rubber and prevents injury thereto. 1 enlargethe rear end of this shell as at 4 so that therubber may flex as isnecessary, and I taper the exterior of the front end of the shell, as at8, so that it will not, in the main,-suiier from anything I moreinjurious than merely glancing blows.

The specificmeans of attaching the protector to the clamp I consideralso noveland efiicient, because the protect'or cannot'become displacedso long as the clamp remains position. The parts are by preference madeof rough metal castings, suitably treated to prevent rust; but the exactsizes, shapes, proportions and materials are unimportant.

' l/Vhen the protector and ring are removed together from the. hose, the'two may then .be separated, it will be observed, without flexing thering. In other words, a down, ward movement of the ring will disengagethe pin 12 from thehole '(and will disengage the hooks 11 from the lip 8at the; bottom.

What is claimedas new is I 1. In a protector for air brake hose andthelike, the combination with a tubular shelle adapted to surround'thehose and having at one-rend a longitudinally projecting lug, piercedwith an eye and diametrically opposite thereto aradially projecting lip;

of a nipple adapted to be positioned; within the extremity of the hose,a'collar consisting of a split ring adapted; to surround the hoseoutside said nipple and having radial. ears at its ends, hooksprojecting from said cars and having their billsengaging the lip onthelprotector, and a pin projecting radially from, the clamp, andengaging the eye in the lug on, said sh'elL 1 H r Y 2. In a, protectorfor air brake hose and the lilie,the combination witlra tubular shell"adapted; to surround a hose and'havingfat one end a longitudinallyprojecting lug. pierced with an eye of a. nipple adapted to ere ti le Wt in h X m y f l e 36 hose, a clamp consisting of a, split ring adaptedto surround the hose outside the ipp -end hai ng radial ears, at ts nd s;means for drawing said; ears together, means f Qnsw s sairlyear th heshe n n aging he ey n d sv 3'.An air brake'oonnection comprising anipple, a hose'pipe engaging overasaid nipple,;-a clamping ring directlyengaging said hose pipe for'holding the hose pipe: on

"saidnipple, and a non-flexible protectorv rigidly-heldin place by saidring, but separable therefrom, said protector and ring havingrigid,interlocking, port-ions whereby the; two are held in proper relation toeach other, but with a sliding connection. between them, permittingcontraction of said ring without tendingtodistort said protector.

air brake connection comprising a nipple, a hose pipe engaging over saidnipple, a' clamping ringv directly engaging saidihose pipe, for holdingthe hose pipe on said, nipple, and; a, non-flexible protectorrigidly'held in place by said ring, but separable therefrom withoutflexing said ring when removed fromv said nipple and-"pipe, having aninterlocking connection with opo-r posite sides thereof, the saidconnection dey pending on the hose pipe to hold the proecfierendi t es.o etheri 1 @Pin; pr jecti e ra ial y m, e r ng nd r 5; An air brakeconnection comprising a n1pple,'ahose pipe engaging over said nipple, aclampingring directly engaging said hose pipe, for holding the hose pipeon said nipple, and a non-flexible protector rigidly held inplace bysaid ring, but sepathereWith said rin bein thereb ad'ust- 7 b b J ablewithout tending to distort said pro-,

tector. I l v 7 6. ,An air brake connectlon comprlslng a nipple, ahose'pipe engaging over said n pple, a clampingring directly engagingsaidhose pipe, for holding the hose pipe on 7. air brake connectioncomprising a nipple a hose pipe engaging over said nipple, a clampingrin-gdirectly engaging sald'hose pipe, forholding'the hose pipe on sa dnipple, and a non-flexible onepiece proteeter rigidly held in place bysaid ring, but separable therefrom without flexing said ring whenremoved "from said nipple and p pa sai p te r lms formed n a r withspace extending entirely around the hosepipe to prevent jamming of thehose pipe. against the end of said nipple, landv externally with asloping impact-deflecting shoulder betweensaid space and ring, theprotector having one end portion thereof gradually. tapered towardthe-ring to providevrsaidshoulder;

8. airbrake connection comprising a nipple, a hose pipe engaging oversaid nipple, a clamping ring v directly engaging,

said hose pipe, for holding thehose pipeon said nipple, and. anon-fiexible protector rigidly held in place by said ring, but separabletherefrom without flexing said ring when removed-from said nipple andpipe, the said, protector having onev end, portion formed to providespace between its inner surface and said hose pipe, said space exrabletherefrom, havinga sliding connection tending from ap'oint back of theend of the if nipple to the outer edge of the protector,

and the other endportion of the protector,

being externally and gradually tapered toward said ring, to provide acircumferential bevel forming a solid impact-deflecting shoulder,.andwhereby the one end of the protector is of greater diameter thanv theother end thereof, as and forth fpose set forth, 7 r

9. air brakeconnection comprising a n1pple,a' hose pipe engaging: oversaid.

nipple,aclamping ring for 'holding'the hose p pe n sa d n rp ia .aprotet r r gi y held in place by said ring, but separable therefrom Withoutflexing said ring when removed from said nipple and pipe, said protectorbeing entirely of solid non flexible metal, formed with an enlarged endportion of greater diameter than said ring, thereby providing a spacebetween the hosepipe and the inner surface of the protector, at the endof the nipple, and also a sloping impactdefiecting shoulder for theoutside thereof, formed by the gradually tapered end portion of theprotector, said ring and protector being separable without distortion ofany portion thereof.

10. An air brake connection comprising a nipple, a hose pipe engagingover said nipple, a clamping ring for holding the hose pipe on saidnipple, and a protector rigidly held in place by said ring, but sepasrable therefrom, said protectorbeing entirely of solid nonflexible.metal, formed with an enlarged end portion of greater diameter than saidring, thereby providing a space between the hose pipe and the innersurface of the protector, at the end of the nipple, and also a slopingimpact-deflecting shoulder for the outside thereof, said ring andprotector being separable without distortion of any portion of saidprotector, and said ring and protector having annular contact with eachother circumferentially of said hose pipe.

11. An air brake connection comprising a nipple, a hose pipe engagingover said nipple, a clamping'ring for holding the hose pipe on saidnipple, and a protector rigidly held in place by said ring, butseparable therefrom, said protector being entirely of solid non-f1exiblemetal, formed with an enlarged end portion of greater diameter than saidring, thereby providing a space between the hose pipe and the innersurface of the protector, at the end of the'nipple, and also a slopingimpact-deflecting shoulder for the outside thereof, said ring andprotector being separable without distortion of any portion of saidprotector, and said ring being flexible, having portions which slide onthe protector when the ring is operated.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

- ANDREW R. PEFFERS. Witnesses D. J. Pnrrnns, J OHN BOU'ITER.

Copies of this patent may be obtained for five cents eachgby addressingthe Commissioner of Patents,

Washington, D. G.

